Compressor exhaust assembly and compressor

Abstract

The invention provides a compressor exhaust assembly and a compressor. The compressor exhaust assembly comprises a flange provided with an exhaust hole; the silencing cover is in an annular groove shape and covers the outlet end of the exhaust hole; a silencing cavity is defined by the silencing cover and the flange; and the quick connection assembly comprises a first quick connection piece and a second quick connection piece which are connected in a matched mode, one of the first quick connection piece and the second quick connection piece is arranged on the flange, and the other one of the first quick connection piece and the second quick connection piece is arranged on the silencing cover, so that the silencing cover and the flange are connected through the first quick connection piece and the second quick connection piece. According to the silencer, the quick connecting assemblies are arranged on the silencing cover and the flange, traditional screw connection is omitted, stable connection of the silencing cover and the flange is achieved, and the problem that due to traditional screw connection, connection is not firm in assembly, and noise is generated is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of compressors, and in particular relates to a compressor exhaust assembly and a compressor. Background Art

[0002] With the increasing awareness of energy conservation in society, existing compressors are gradually developing towards high energy efficiency and low noise, and the optimized design of exhaust mufflers can play a vital role in improving performance and reducing noise.

[0003] Taking the existing rotary compressor as an example, the muffler is one of the main means and methods to reduce the gas dynamic noise in the rolling rotor refrigeration compressor. Fig. 9 The figure shows a common muffler used in existing compressors. The principle is that when the refrigerant gas passes through the pump compressor and is discharged into the lower chamber of the motor through the exhaust port, the high-pressure gas after being compressed by the pump body excites a strong exhaust noise when passing through the exhaust port. Usually, the exhaust noise is the main source of pneumatic noise. The muffler is used to slow down the air flow pulsation and reduce the exhaust noise. The principle is to use a resistive exhaust muffler to reduce the pressure pulsation and noise level. It uses the sudden change of the cross-sectional area of ​​the pipeline in the flow direction to make the air flow reflect or interfere, thereby reducing the noise level.

[0004] The muffler plays a key role in reducing the noise of the compressor. Fig. 9 As shown, in the current rotor compressor, a screw hole 3 or a screw avoidance hole is provided on the muffler, and a corresponding screw hole is provided on the flange. The use of screw connection is currently a widely used connection method. It is difficult to avoid loose screw connection during the assembly process. Once air leakage occurs, the compressor will have problems such as increased noise and reduced energy efficiency. Summary of the invention

[0005] Therefore, the present application provides a compressor exhaust assembly and a compressor, which can solve the problem of the muffler and flange connected by screws in the prior art, which have loose connections and produce noise during assembly.

[0006] In order to solve the above problems, the present application provides a compressor exhaust assembly, comprising:

[0007] A flange having a vent hole;

[0008] A silencer cover is provided in the shape of an annular groove and is buckled on the outlet end of the exhaust hole; the silencer cover and the flange form a silencer cavity;

[0009] The quick-connect assembly includes a first quick-connect member and a second quick-connect member that are matched and connected, wherein one of the first quick-connect member and the second quick-connect member is arranged on the flange, and the other is arranged on the silencer cover, so that the silencer cover and the flange are connected via the first quick-connect member and the second quick-connect member.

[0010] In some embodiments,

[0011] The quick-connect assembly comprises an internal threaded part and an external threaded part which are threadedly connected, one of the internal threaded part and the external threaded part is arranged on the flange, and the other is arranged on the muffler cover.

[0012] In some embodiments,

[0013] The flange is provided with the internal threaded part or the external threaded part, and the two are an integrated structure; or / and, the silencer cover is provided with the external threaded part or the internal threaded part, and the two are an integrated structure.

[0014] In some embodiments,

[0015] The quick-connect assembly comprises a clamping head and a clamping slot matching the buckle, one of the clamping head and the clamping slot is arranged on the flange, and the other is arranged on the muffler cover.

[0016] In some embodiments,

[0017] When the muffler cover is provided with the clamping head or the clamping groove, the clamping head or the clamping groove is located on the outer wall of the muffler cover and is evenly arranged along the circumference of the outer wall.

[0018] In some embodiments,

[0019] The fixing end of the clamp is threadedly connected to the muffler cover or the flange.

[0020] In some embodiments,

[0021] The clamping groove is configured as an annular structure, and its cross section is configured as a convex structure; an elastic protrusion is configured on the outer periphery of the clamping end of the clamping head and is clamped in the convex structure.

[0022] In some embodiments,

[0023] The clamp is in an annular shape, and at least one side surface thereof is provided with the elastic protrusion.

[0024] According to another aspect of the present application, a compressor is provided, comprising the compressor exhaust assembly as described above.

[0025] The present application provides a compressor exhaust assembly, comprising: a flange, provided with an exhaust hole; a silencer cover, which is arranged in an annular groove shape and is buckled on the outlet end of the exhaust hole; the silencer cover and the flange form a silencer cavity; a quick-connect assembly, comprising a first quick-connect piece and a second quick-connect piece that are matched and connected, one of the first quick-connect piece and the second quick-connect piece is arranged on the flange, and the other is arranged on the silencer cover, so that the silencer cover and the flange are connected via the first quick-connect piece and the second quick-connect piece.

[0026] This application has the following beneficial effects:

[0027] By arranging quick-connect components on the silencer cover and the flange, the traditional screw connection is eliminated, and a stable connection between the silencer cover and the flange is achieved, thus avoiding the problem of loose connection and noise caused by the traditional screw connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the implementation methods or the prior art descriptions. The drawings described below are merely exemplary, and for those of ordinary skill in the art, other implementation drawings can be derived from the provided drawings without creative work.

[0029] Figure 1 This is a schematic diagram of the structure of a soundproof cover according to an embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of the structure of the flange of an embodiment of the present application;

[0031] Figure 3 A second structural schematic diagram of the soundproof cover according to an embodiment of the present application;

[0032] Figure 4 A second structural schematic diagram of a flange according to an embodiment of the present application;

[0033] Figure 5 A third structural schematic diagram of the soundproof cover according to an embodiment of the present application;

[0034] Figure 6 This is a third structural schematic diagram of the flange of an embodiment of the present application;

[0035] Figure 7 A bottom view of the soundproof cover according to an embodiment of the present application;

[0036] Figure 8 A top view of a flange according to an embodiment of the present application;

[0037] Fig. 9 This is a bottom view of a traditional muffler cover;

[0038] Fig.10 This is a comparison chart of the total sound power of this application and traditional structures.

[0039] The reference numerals are as follows:

[0040] 1. Silencer; 11. External thread of the silencer; 12. Internal thread of the silencer; 13. Clamp;

[0041] 2. Flange; 21. Internal thread of flange; 22. External thread of flange; 23. Slot;

[0042] 3. Screw holes. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0046] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0047] See also Figures 1 to 8 As shown, according to an embodiment of the present application, a compressor exhaust assembly includes:

[0048] Flange 2, provided with a vent hole;

[0049] The silencer cover 1 is designed to be annularly grooved and buckled at the outlet end of the exhaust hole; the silencer cover 1 and the flange 2 form a silencer cavity;

[0050] The quick-connect assembly includes a first quick-connect member and a second quick-connect member that are matched and connected, wherein one of the first quick-connect member and the second quick-connect member is arranged on the flange 2, and the other is arranged on the silencer cover 1, so that the silencer cover 1 and the flange 2 are connected via the first quick-connect member and the second quick-connect member.

[0051] The present application adopts a method of setting a quick-connect assembly on the silencer 1 and the flange 2, eliminating the traditional screw connection, achieving a stable connection between the silencer 1 and the flange 2, and avoiding the problem of loose connection and noise caused by the traditional screw connection.

[0052] The traditional assembly method of the silencer 1 and the flange 2 is to apply force through screws to achieve a sealed connection between the end faces of the silencer 1 and the end faces of the flange 2. This assembly method makes the screws easily deformed in a high-pressure environment, which will create gaps and cause problems such as fluid penetration and abnormal noise.

[0053] The present application adopts two quick connectors respectively arranged on the silencer 1 and the flange 2, and assembles them in the corresponding connection method. Since the two quick connectors are respectively arranged on the silencer 1 and the flange 2, it is equivalent to that the silencer 1 and the flange 2 are directly connected. It can replace the traditional screw connection method to achieve a fixed connection between the two, which can avoid the leakage and noise problems that may occur in the screw connection.

[0054] The above-mentioned quick-connect assembly includes parts such as threaded connectors and snap connectors, which are easy and quick to assemble, thereby improving assembly efficiency.

[0055] The present application utilizes the flange 2 and the components of the silencer cover 1 for connection, which saves components and ensures coaxiality, thereby reducing the power consumption of the compressor and is more conducive to improving the energy efficiency of the compressor; at the same time, the screw holes 3 or avoidance holes are eliminated, so that the silencer cavity surrounded by the silencer cover 1 and the flange 2 can be set with a larger volume space, and the silencing effect is improved.

[0056] In some embodiments,

[0057] The quick-connect assembly includes an internal threaded part and an external threaded part that are threadedly connected. One of the internal threaded part and the external threaded part is arranged on the flange 2, and the other is arranged on the muffler cover 1.

[0058] When the quick-connect assembly is provided with an internal threaded part and an external threaded part connected by a thread, it includes Figure 2 The internal threaded part shown is arranged on flange 2, and Figure 1 The external threaded member is provided on the muffler cover 1, and Figure 3 The internal threaded part is arranged on the muffler cover 1, and Figure 4 The external threaded part shown is arranged on flange 2, so that Figure 1 and Figure 2 , Figure 3 and Figure 4 The silencer cover 1 and the flange 2 can be assembled by one-to-one thread connection.

[0059] The flange 2 and the silencer cover 1 are connected by threads, so that the connection area between the two is the entire thread area. Compared with the traditional screw connection method, the connection area is increased, the stability of the connection is increased, it is not easy to deform, and it can withstand a greater exhaust pressure.

[0060] The threaded connection between the internal thread part and the external thread part together constitutes a sound insulation layer. When the high-speed flowing refrigerant gas is ejected from the exhaust port on the flange 2 at high speed and violently mixed with the gas around the exhaust port, jet noise is generated. At the same time, resonance noise is also generated in the exhaust muffler. The connection part between the flange 2 and the silencer cover 1, that is, the sound insulation layer collides with the resonance sound to achieve silencer, thereby achieving the effect of reducing noise.

[0061] In some embodiments,

[0062] The flange 2 is provided with the internal threaded part or the external threaded part, and the two are an integrated structure; or / and, the silencer 1 is provided with the external threaded part or the internal threaded part, and the two are an integrated structure.

[0063] For internal thread parts or external thread parts, they can be directly set on the corresponding positions of the flange 2 or the silencer 1. Since the silencer 1 is set in a hood manner, it can include setting external threads on the outer peripheral wall of the outer wall of the silencer 1 to form the silencer external thread 11, or setting internal threads on the inner peripheral wall of the outer wall to form the silencer internal thread 12, that is, the threads are directly processed from the outer wall of the silencer 1, without the need to add an additional component; similarly, flange internal threads 21 or flange external threads 22 are set at the corresponding position on the flange 2.

[0064] The internal threaded part or the external threaded part is used as a component on the flange 2 or the muffler cover 1, which can reduce the number of parts and assembly operations, improve the operating efficiency and avoid the leakage of high-pressure gas.

[0065] For internal or external threads, the height is greater than or equal to 3mm, and the thread pitch is greater than or equal to 0.5mm to ensure matching. In this way, different models of compressors can be adjusted accordingly to ensure the airtightness of the threaded connection.

[0066] In some embodiments,

[0067] The quick-connect assembly includes a clamping head 13 and a clamping slot 23 that match the buckle. One of the clamping head 13 and the clamping slot 23 is arranged on the flange 2 , and the other is arranged on the muffler cover 1 .

[0068] The quick-connect assembly can also be configured to match the clamp head 13 and the clamp slot 23 of the clamp connection, and the clamp head 13 is inserted into the clamp slot 23 to achieve the connection between the two. The clamp head 13 and the clamp slot 23 are respectively arranged on the flange 2 and the muffler cover 1, and the clamp head 13 and the clamp slot 23 are connected to achieve the connection between the flange 2 and the muffler cover 1.

[0069] like Figure 5 As shown, the clamping head 13 is arranged on the side of the muffler cover 1, and as shown in Figure 6 The shown clamping groove 23 is arranged on the side of the flange 2. When the muffler cover 1 is buckled on the flange 2, the clamping head 13 is inserted into the clamping groove 23 to form a buckle connection, thereby achieving a fixed connection between the muffler cover 1 and the flange 2. Similarly, the setting positions of the clamping head 13 and the clamping groove 23 can be interchanged to achieve the same fixed connection effect.

[0070] In some embodiments,

[0071] When the muffler cover 1 is provided with the clamping head 13 or the clamping groove 23 , the clamping head 13 or the clamping groove 23 is located on the outer wall of the muffler cover 1 and is evenly arranged along the circumference of the outer wall.

[0072] When the clamping head 13 or the clamping groove 23 structure is set on the silencer 1, the clamping head 13 and the clamping groove 23 are set on the outer wall. Since they need to be abutted with the flange 2, the clamping head 13 or the clamping groove 23 are located on the side of the outer wall, especially evenly arranged along the circumference of the outer wall, so as to enhance the stability and tightness of the connection between the silencer 1 and the flange 2.

[0073] In some embodiments,

[0074] The fixing end of the clamp 13 is threadedly connected to the muffler cover 1 or the flange 2 .

[0075] The clamp 13 can be used as an independent component, and one end of the clamp is fixedly connected to the flange 2 or the silencer 1. The fixing method includes bonding or threaded connection. Preferably, a threaded connection is adopted, that is, a threaded hole is set on the flange 2 or the silencer 1, and one end of the clamp 13 is screwed into it to complete the fixed connection, which is convenient for disassembly, assembly and replacement.

[0076] In some embodiments,

[0077] The clamping groove 23 is configured as an annular structure, and its cross section is configured as a convex structure; an elastic protrusion is configured at the outer periphery of the clamping end of the clamping head 13 and is clamped in the convex structure.

[0078] In order to simplify the convenience of the snap connection, the slot 23 is set to be annular, and the clamping head 13 can be inserted into the slot 23 at any position, that is, the clamping head 13 can rotate circumferentially along the slot 23; and the other end of the clamping head 13 is provided with an elastic protrusion, which is convenient for snap connection with the U-shaped structure of the slot 23.

[0079] In some embodiments,

[0080] The clamping head 13 is configured to be annular, and the elastic protrusion is disposed on at least one side thereof.

[0081] With respect to the annular slot 23 structure, the clamp head 13 can also be designed to be annular, and an elastic protrusion can be provided on at least one side of the clamp head 13 to facilitate insertion into the slot 23 and complete the snap connection.

[0082] The buckle connection not only reduces the strength of the tooling, but also plays a good sealing role; in summary, the clamp head 13 can be dispersed into multiple parts, or set as a whole ring structure, and its corresponding size matches the clamping groove 23. The material of the clamp head 13 itself can be elastic steel.

[0083] According to another aspect of the present application, a compressor is provided, comprising the compressor exhaust assembly as described above.

[0084] The compressor of this application adopts the above compressor exhaust assembly to conduct noise test. The noise test ensures that other conditions are unchanged, and only the connection method of flange 2 and silencer cover 1 is changed. The noise results are as follows: Fig.10 As shown, it can be seen that at low frequencies, the noise difference between the traditional solution and the solution of the present application is not very obvious, and the noise reduction effect is obviously preferred in the subsequent high-frequency band, with the noise reduced by 3-5dB.

[0085] It is easy for those skilled in the art to understand that the above-mentioned implementation modes can be freely combined and superimposed without conflict.

[0086] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A compressor exhaust assembly, characterized in that: include: A flange (2) is provided with a vent hole; A silencer cover (1) is provided in the shape of a ring groove and is buckled at the outlet end of the exhaust hole; The silencer cover (1) and the flange (2) form a silencer chamber; A quick-connect assembly comprises a first quick-connect member and a second quick-connect member that are matched and connected, wherein one of the first quick-connect member and the second quick-connect member is arranged on the flange (2), and the other is arranged on the silencer cover (1), so that the silencer cover (1) and the flange (2) are connected via the first quick-connect member and the second quick-connect member.

2. The compressor exhaust assembly according to claim 1, characterized in that: The quick-connect assembly comprises an internal threaded part and an external threaded part which are threadedly connected, one of the internal threaded part and the external threaded part being arranged on the flange (2) and the other being arranged on the muffler cover (1).

3. The compressor exhaust assembly according to claim 2, characterized in that: The flange (2) is provided with the internal threaded part or the external threaded part, and the two are an integrated structure; or / and, the silencer cover (1) is provided with the external threaded part or the internal threaded part, and the two are an integrated structure.

4. The compressor exhaust assembly according to claim 1, characterized in that: The quick-connect assembly comprises a clamping head (13) and a clamping slot (23) that match the clamping buckle; one of the clamping head (13) and the clamping slot (23) is arranged on the flange (2), and the other is arranged on the muffler cover (1).

5. The compressor exhaust assembly according to claim 4, characterized in that: When the muffler cover (1) is provided with the clamping head (13) or the clamping groove (23), the clamping head (13) or the clamping groove (23) is located on the outer wall of the muffler cover (1) and is evenly arranged along the circumference of the outer wall.

6. The compressor exhaust assembly according to claim 4 or 5, characterized in that: The fixed end of the clamp (13) is threadedly connected to the silencer cover (1) or the flange (2).

7. The compressor exhaust assembly according to claim 6, characterized in that: The clamping groove (23) is configured as an annular structure, and its cross section is configured as a convex structure; the outer periphery of the clamping end of the clamping head (13) is provided with an elastic protrusion clamped in the convex structure.

8. The compressor exhaust assembly according to claim 7, characterized in that: The clamping head (13) is designed to be annular, and at least one side surface thereof is provided with the elastic protrusion.

9. A compressor, characterized in that: Comprising a compressor exhaust assembly as described in any one of claims 1-8.

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